Running Guix on Debian 8.3 from git bae0636 bournish: Add 'wc' command.

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Testsuite summary for GNU Guix 0.10.0
============================================================================
# TOTAL: 582
# PASS:  558
# SKIP:  15
# XFAIL: 0
# FAIL:  9
# XPASS: 0
# ERROR: 0
============================================================================